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(No Model.)

S. SNELLENBURG 8: O. P. BOOTH. INSOLE.

No. 450,920. Patented Apr. 21, 1891.

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wttmeooea $J024 as. I r I n42 "cams Perms ca. Mm'mumm, msmucn'ou u cUNITED STATES PATENT OFFICE.

SAMUEL SNELLENBURG, OF PHILADELPHIA, PENNSYLVANIA, AND CHARLES P. BOOTH,OE CAMDEN, NEYV JERSEY.

INSOLE.

SPECIFICATION forming part of Letters Patent No. 450,920, dated April21, 1891.

' Application filed December 11,1890. Serial No. 374,338. (No model.)

To CLZZ whom it may concern:

Be it known that we, SAMUEL SNELLEN- BURG, of Philadelphia, Philadelphiacounty, Pennsylvania, and CHARLES P. BOOTH, of

5 Camden, Camden county, New Jersey, citizens of the United States ofAmerica, have invented certain new and useful Improvements in Insolesfor Boots or Shoes; and we do hereby declare the following to be a full,clear, and

I exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to letters of referencemarked thereon, r which form a part of this specification.

This invention relates to improvements in insoles for boots or shoes.

The object of the invention is to provide a cheap, light, flexible, andwater-proof insole,

which is made up of composite fabric constructed of the materials and inthe manner to be hereinafter set forth.

In the accompanying drawings, forming part of this specification, Figure1 is a plan View of an insole made up in accordance with our invention,and Fig. 2 is a View showing the parts of the fabric of which the insoleis made separated.

A A refer to the outer coverings, which are 0 preferably of textilefabric or felt, and adj acent to these are, placed thin sheets of rubberB, which are soluble or can be melted by the application of heat to theouter surfaces of the fabric. The central sheet C is made of 3 5asbestus.

In the manufacture of the composite fabric the parts are laid flat uponeach other and by passing a heated iron over the same they will becomeintimately united and will form a thick, comparatively soft, and pliablecommately thereto the covering of textile fabric.

These coverings of textile fabric give additional strength to theasbestus paper, and being on both sides of the insole will prevent thesame adhering to the shoe or stocking of the wearer should the tissuemelt from any cause when in use. An insole thus made can be reversed, sothat buta single die is needed to produce a pair, and the user of theinsole can reverse them or change them from the right to the left whendesired.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is

As an improved article of manufacture, an insole made up of a compositefabric consisting of exterior layers of textile fabric or felt, acentral layer of asbestus paper, and intermediate films of rubbersoluble under heat, the parts being united substantially as set forth.

In testimony whereof we afifix our signatures in presence of twowitnesses.

SAMUEL SNELLENBURG. CHARLES P. BOOTH.

Witnesses:

GUSTAVUS REMAK, J 1:, ADOLPH EIcHHoLz.

